Read our full Sigma 24-70mm f/2.8 DG OS HSM Art review ... Here is a selection of what we reckon are the best telephoto zoom lenses for Nikon DSLRs… Being at least £700 cheaper than Nikon ...

Think classic telephoto zooms for 35mm film cameras and DSLRs of a certain age ... in the wings for six whole years, Sigma finally released its first-ever lens for the Canon EOS R system.